This is a question I get asked frequently, so I'll give you an example.
Organic vegetable growing group
https://vegimo.net/
A club that spreads values through running
https://windrun-sns.net/
I think it works effectively if there are existing members and communities.
I think it would be difficult for someone in my position, starting from zero with nothing and no connections or friends.
However, there is a possibility if you are an influencer or someone who has some strengths even just in the online world.